Clutch adjustment

Ralph Fuller · Unread post by **Ralph Fuller** » July 14th, 2008, 9:59 am

The clutch on my 1967 M151A1 is engaging almost immediately from the floor after engaging the starter. I've never adjusted one before, and know it should be an easy fix. Any and all suggestions appreciated.

Unread post by **rickf** » July 14th, 2008, 10:41 am

The adjustment is on the rod going from the bellcrank to the bell housing but if your pdeal was good before and right on the floor now that is not wear, that is a mechanicla issue. I would check the two bolts that hold the bellcrank to the frame and see if they have come loose, also check the ball where the bellcrank goes into the block to see if it has cracked. If you need a bellcrank let me know, I have several.
Rick

Ralph Fuller · Unread post by **Ralph Fuller** » July 14th, 2008, 11:08 am

Thanks, Rick....it has been doing it gradually.

Unread post by **rickf** » July 14th, 2008, 11:58 am

What I am saying is if it were the clutch disc wearing the pedal would be getting higher. Something mechanical means you have to push the pedal further before it moves the clutch. Just have someone pull the pedal up and push down until resistance is felt by hand, keep doing this while you are under there looking at the linkage. You are looking for play anywhere other than where the rod goes into the bell housing. Pedal to rod, rod to bellcrank. bellcrank to frame mounts and block mount, bellcrank to clutch rod. Those will be the spots to look at. If they are all tight then lenghten the rod a little.
Rick

muttguru · Unread post by **muttguru** » July 14th, 2008, 4:41 pm

Ralph,

Rick has listed the most likely causes. There are a couple more obscure ones, so you may as well add these into your inspection:-

1. Engine-to-bellhousing bolts working loose. I saw this on a car (British Ford Consul....similar motor to a mutt)....when the owner pushed the clutch pedal down, the engine and gearbox moved apart. If we hadn't spotted it, eventually, the two would have parted company !

2. Pressure plate-to-flywheel bolts working loose, with pedal needing more & more travel to disengage the gears, and less travel to engage a gear.

3. Release bearing collapsing. You can usually hear this one....and feel it, too.

Hope you find that it's one of the easy cures !

Unread post by **rickf** » July 14th, 2008, 7:38 pm

Ken, I was saving the best for last.

I figured if it was gradual it would not be a broken pressure plate spring. I have also seen the loose engine bell bolt scenario on a Volkswagon.
Rick

k8icu · Unread post by **k8icu** » July 14th, 2008, 10:29 pm

If you do not have a -20 maintence manual I suggest you get one. Download it from the web, buy one, steal one what ever. It will give you the directions on how to adjust the free travel in the pedel and other things to look for and how to fix them if they are bad.

Unread post by **rickf** » July 15th, 2008, 6:48 am

k8icu wrote:If you do not have a -20 maintence manual I suggest you get one. Download it from the web, buy one, steal one what ever. It will give you the directions on how to adjust the free travel in the pedel and other things to look for and how to fix them if they are bad.

I can assure you that Ralph has the manuals, Those of us who have been here for a while all owe Ralph any and all info he asks for in return for the pictures and obscure info he has dug up for us over the years.
Rick

Clutch adjustment

Clutch adjustment

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Re: Clutch adjustment

Re: Clutch adjustment

Re: Clutch adjustment

Re: Clutch adjustment

Re: Clutch adjustment

Re: Clutch adjustment